Reenforcing truss or frame



l y w 1,618,527 Feb. 22 192,7- s. G. GRlr-FlTl-lsy REENFORCINGv TRUSS 0RFRAME Filed July 8, 1925 2 Sheets-Sheet? me/nto@ APatented Feb. 22,'1927.

i UNITED s'rarss essere@ afer-Innes 0F arresteren Hrw-NA- `manNroncrns'rRuss on FRAME.

- Application filed July 8,

This invention relates to new and'useful improvements in concretereenforcing trusses or fremes- The primary object of my invention is toprovide a concrete reenforcing truss or frame consisting of av pluralityof independent parts or units which may be easily and readily assembledand 'locked into a rigid Acompa-ct assemblage. Y

Withthe foregoing and otherv objects inv View that will appear asthenature of my invention is better understood, the same ,con-

sists in the novel features of construction, combination and arrangementof parts illustrated inthe accompanying drawings and more particularlypointed out in the appended claims. 1

' In the accompanyingdrawings, which are for illustrative purposes onlyand are therefore not drawn to scale Fig. 1 is a top plan.

Fig. 2 is a side elevation. l v

Fig. 3 is a plan of the sections of the main frame with the connectingsleeves therefor in horizontal section.y

Fig. 4 is an end view.

Fig. 5 is a fragmental perspective of one end of the truss, and

Fig. 6 is a transverse section with the central spacing element shown inelevation. Referring to the drawings for a more particular descriptionof myv invention and in which drawings like parts are designated by likereference characters throughout the several views, my concretere-enforcing truss comprises, first, a substantially rectangular frame Aconsisting of the longitudinal side members 1, preferably in the form ofcylindrical steel rods, formed at opposite ends with the inwardly andright -angularly bent portions 2 connected together by the cylindricalsleeves 3 which co-act-with the aforesaid end portions in forming theend members of said rectangular frame.

VA series of three or more parallel laterally spaced re-enforcingmembers 4 and 5, preferably in the form of cylindrical steel rods,extend lengthwise of the frameH A, as shown.

The' central rod 4 is perfectly straight throughout its entire lengthexceptv at its ends, which are bent downwardly at right angles, as at 6,to form the lugs 7 adapted to hook over the sleeves 3. The outer rods 5comprise the central straight portions 7 and the raised outer portions 8which are gradually inclined downwardly and outwardly and terminate attheir opposite ends 1n the downwardly and outwardly bent lugs 9 'whichengageyor hook under the sleeves 6U 3 aforesaid. `With the parts in thisvposition, the crossl rods l0 are inserted betweenV the Aside.members ofthe frame A and the central re-enforcing-member 4 and the raised endportions of the; outer re-enforcing mein- Y bers 5. This firmly securesor loolis the several component parts togetherl in one coni-- pactrigidassembly.y i

A .Centrul transverse Snecma element Ais employed to hold the sidemember 1 of the 70 frame A and the rods 4 and 5 in proper spacedrelation. This element is in the form of a single continuous wire bentcentrally upon itself with its ends 11 and 12 bent around one sidemember of the frame A and corrugated or bent, as at 13 and 14, to reyceive the other side member of the frame and the rods 4 and 5,respectively.

My device may be used for re-enforcing vconcrete bridges, floors, orcement or concrete structures of any character where the same may beused to advantage.

From the foregoing description, taken in connection with the drawings,it is thought that the constructiom operation and advan- 8,5y

tages of my invention will be readily understood without requiring amore extended explanation.

Having described my invention, what I claim as new and desire to secureby Letters Patent is 1.. A reenforcing truss including a frame havingside and end portions, a plurality of rods extending longitudinally ofthe frame between the side portions thereof, the ends of certain of therods being bent to engage over one face of the end portions of thekframe and the ends of the other rod being bent to engage over theopposite face of the end portions, and transversely extending rodsengageable with the side portions of the frame and with opposite facesOfalternate longitudinally'extending rods.

2. A reenforcing truss including a rectangular frame formed of sections,means for detachably connecting the ends of the sections, and rodsextending longitudinally of the frame, intermediate the sides thereof,and engageable with the ends.

3. A reenforcing truss including a rectan- 1,10

gular frame formed of sections detachably connectedv at their ends bytelescoping sleeves, and rods extending longitudinally ot the :l'raxneand engagealile with the ends thereof.

4. A reen'toreing truss including a frame formed ot longitudinallyextending portions having their ends lient inwardly and sleeves intowhich the inwardly extending end portions are received for connectingthe seetions, and rods extending longitudinally oli the traine andengageable `with the end portions thereof.

5. A reenforeing trnss including a traine formed of longitudinallyextending portions having their ends bent inwardly and sleeves intowhich the inwardly extending end portions are received tor eonneetingthe sections, and a plurality ot rode extending longitndinelly oiE thetraine with the ends of alternate rods bent to engage on opposite sidesof the connecting sleeve.

6. A reenloreing truss including a frame formed of longitudinallyextending portions haring their ends lient inwardly and sleeves intowhich the inwardly extending.,r end por tions are received torconnecting the sections, a plurality ot rods extending longitudinallyolf the traine with the ends of alternate rods lient to engage onopposite sides of the connecting sleeveq and a transversely extendingrod engageahle with the frame and the longitudinally extending rods.

7. A reen'lioreing truss including a frame, having side and endportions, a rod extending longitudinally ot the traine, centrallythereoi :ind engagealile with the end portions thereof, and rodsextending longitndnelly of the traine on opposite sides of the firstn'ientioned rod with their ends engageable with the ends of the traine,said last mentioned rods having raised portions adj arent the endportions of the frame.

In testin'iony whereof he aitixes his signature. i SAMUEL G. GRIFFITHS.

